/Engine/Plugins/Animation/MLDeformer/MLDeformerFramework/Source/MLDeformerFramework/Public/MLDeformerInputInfo.h
Extract bone space rotations, as a float array. The number of output rotations are NumBones * 6, where the array contains a set two columns of a 3x3 rotation matrix values. components of the bone's bone space (local space) rotation quaternion.
virtual void ExtractBoneRotations ( [USkeletalMeshComponent](API\Runtime\Engine\Components\USkeletalMeshComponent) * SkelMeshComponent, [TArray](API\Runtime\Core\Containers\TArray)< float > & OutRotations ) const